Takahashi, Hitachinaka

Akeshi Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090200885

Self starting permanent magnet synchronous motor - The present invention provides a permanent magnet that a fluorine compound is formed on the surfaces of Fe-based magnetic particles, and a recoil permeability is determined in a range of 1.05 to 1.30 by controlling an iron concentration in the fluorine compound to a range of 1 to 50% to reduce a loss due to magnetization rotation, thereby remedying reduction of a residual magnetic flux density and degradation of steady-state characteristics.

08-13-2009

20110241466

PERMANENT MAGNET SYNCHRONOUS MACHINE, AND PRESSING OR EXTRUSION MACHINE INCLUDING PERMANENT MAGNET SYNCHRONOUS MACHINE - To provide a permanent magnet synchronous machine capable of expanding a high-speed operation range without reducing torque, and a pressing machine or an extrusion machine using the permanent magnet synchronous machine. In order to achieve the object described above, the present invention provides a permanent magnet synchronous electric machine having at least one permanent magnet on a radial surface of a rotor core, the permanent magnet having a rotor constituting a field pole, wherein a plurality of slits constituted by nonmagnetic material is provided on a core part between adjacent permanent magnets with opposite magnetic polarities of the rotor. According to the present invention, expansion of a high-speed operation range can be achieved without reducing torque.

10-06-2011

Junya Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090112404

VEHICLE CONTROL APPARATUS - A vehicle control apparatus having a vehicle state quantity detection unit for detecting vehicle state quantity such as a roller angular velocity, a lateral jerk calculation unit for calculating lateral jerk of a vehicle based on the vehicle state quantity, and a control unit for carrying out the vehicle control based on the lateral jerk.

04-30-2009

20090143951

Forward Collision Avoidance Assistance System - An object of the present invention is to provide a forward collision avoidance assistance system that attains the reduction of driver's uncomfortable feeling and the improvement in drivability while ensuring the collision avoidance performance during operation for avoiding contact with an object.

Vehicle Motion Control Device - There is provided a vehicle drive control system that feels less unnatural and that enables an improvement in safety performance. A vehicle motion control system capable of independently controlling a driving force and a braking force of four wheels comprises: a first mode (G-Vectoring control) in which substantially the same driving force and braking force are generated with respect to left and right wheels among the four wheels based on a longitudinal acceleration/deceleration control command that is coordinated with the vehicle's lateral motion; and a second mode (sideslip prevention control) in which different driving forces and braking forces are generated with respect to the left and right wheels among the four wheels based on a target yaw moment derived from the vehicle's sideslip information, wherein the first mode is selected when the target yaw moment is equal to or less than a pre-defined threshold, and the second mode is selected when the target yaw moment is greater than the threshold (FIG.

07-12-2012

20120209489

Vehicle Movement Controller - There is provided a vehicle motion control device that defines a pre-curve entry deceleration amount taking the deceleration amount that occurs while traveling a curve into consideration. A vehicle motion control device

08-16-2012

20140222309

Vehicle Motion Control Device - There is provided a vehicle drive control system that feels less unnatural and that enables an improvement in safety performance. A vehicle motion control system capable of independently controlling a driving force and a braking force of four wheels comprises: a first mode (G-Vectoring control) in which substantially the same driving force and braking force are generated with respect to left and right wheels among the four wheels based on a longitudinal acceleration/deceleration control command that is coordinated with the vehicle's lateral motion; and a second mode (sideslip prevention control) in which different driving forces and braking forces are generated with respect to the left and right wheels among the four wheels based on a target yaw moment derived from the vehicle's sideslip information, wherein the first mode is selected when the target yaw moment is equal to or less than a pre-defined threshold, and the second mode is selected when the target yaw moment is greater than the threshold (FIG.

08-07-2014

Patent applications by Junya Takahashi, Hitachinaka JP

Kaname Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090050803

Charged particle beam device - The charged particle beam device of this invention separately detects secondary signal particles emitted from the surface of a sample, dark field signal particles scattered within and transmitted through the sample, bright field signal particles transmitted through the sample without being scattered within the sample, and thereby allows the operator to observe the image with an optimum contrast according to applications. In order to detect only the dark field transmitted signal particles scattered within the sample, among the transmitted signal particles obtained by the primary charged particle beams having transmitted through the thin film sample, the device includes a transmitted signal conversion member having an opening through which the bright field transmitted signal particles not being scattered within the sample can pass, and a detection means for detecting signals colliding against the conversion member.

02-26-2009

20130056636

SCANNING ELECTRON MICROSCOPE - Sample drift in a scanning electron microscope is suppressed which is caused by a change in room temperature or associated with operation of motors for driving a sample stage. Supply currents to the motors during movement of the sample and a stop of the sample movement are controlled so that the supply currents have the same level or so that a maximum difference in level between the supply currents is 20%. This lessens any changes in the amounts of heat generated by the motors, thereby reducing sample drift during observation.

03-07-2013

20130082190

STAGE APPARATUS - Fluctuation in speed when a stage with a sample mounted thereon is moved at low speed is reduced such that an image to be observed is moved at constant speed when performing high-magnification observation using a scanning electron microscope. A control amount is obtained by compensation means from the deviation between position information obtained from position information detected by position detection means through a first low-pass filter and a command value obtained by integrating a speed command value input from stage operation input means and through a second low-pass filter having the same frequency characteristic as the first low-pass filter, and a driving signal to be output to driving means is generated from the added value of the control amount and the speed command value by waveform output means.

04-04-2013

Patent applications by Kaname Takahashi, Hitachinaka JP

Katsushi Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090035185

SPECIMEN PREPROCESSING SYSTEM - A specimen preprocessing system including a specimen rack which supports a specimen container with its opening sealed with a plug for storing the specimen, a carrier line for carrying the specimen rack, a preprocessing unit to which the specimen rack is carried by the carrier line, and a control unit for controlling the carrier line and the preprocessing unit is provided with a plug opening unit which is capable of opening plugs of the specimen containers each having a different height (different plug configuration or diameter) mounted in the same specimen rack.

02-05-2009

Makiko Takahashi, Hitachinaka JP

Patent application number

Description

Published

20130230908

REACTION PLATE ASSEMBLY, REACTION PLATE AND NUCLEIC ACID ANALYSIS DEVICE - Provided is a technology such that, in nucleic acid analysis, a high degree of freedom in loading or unloading a reaction plate can be obtained and a sample can be efficiently analyzed. A reaction plate assembly includes a reaction plate with one or more reaction wells, a visible light transmissive cover mounted on the reaction plate and covering the reaction wells, and a visible light transmissive weight member covering the cover. The reaction wells are disposed in an arc shape along the circumference of a circle with a predetermined radius r

09-05-2013

Makio Takahashi, Hitachinaka JP

Patent application number

Description

Published

20100275893

Ignition Coil Device for Internal Combustion Engine - An internal combustion engine ignition coil device has an annular seal rubber at its lower side coil. An annular projection is provided on a part of the seal rubber and is pressed against the inner diameter surface of a plug hole. An air path is formed in part of a coil case by mounting the seal rubber into a groove, enabling inside and outside portions of the plug hole to communicate. A gas-permeable thin film resin member is bonded to an inlet of the air path.

11-04-2010

20110247600

Ignition Coil Device for Internal Combustion Engine - An internal combustion engine ignition coil device has an annular seal rubber at its lower side coil. An annular projection is provided on a part of the seal rubber and is pressed against the inner diameter surface of a plug hole. An air path is formed in part of a coil case by mounting the seal rubber into a groove, enabling inside and outside portions of the plug hole to communicate. A gas-permeable thin film resin member is bonded to an inlet of the air path.

10-13-2011

20120299679

Ignition Coil for Internal Combustion Engine - An auxiliary core portion and a main core portion, including a magnet if the magnet is attached, are covered by a resin film or an elastomer film and fixed as a single assembly. In this state, a coil is attached to the assembly and a side core portion is assembled to the assembly. The auxiliary core portion and the main core portion, including the magnet if it is attached, can be supplied, as the single assembly, to an automated assembly line for ignition coils. It is not necessary to position such components on the assembly line. Thus, the workability of the automated assembly can be enhanced.

11-29-2012

20140043717

Ignition Coil for Internal Combustion Engine - An object of the present invention is to provide an ignition coil for use in an internal combustion engine, offering improved water drainage performance, while achieving high waterproof performance with controlled entry of water in a plug hole. A high-voltage generating section

02-13-2014

Patent applications by Makio Takahashi, Hitachinaka JP

Noritsugu Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090184255

INSPECTION METHOD AND INSPECTION SYSTEM USING CHARGED PARTICLE BEAM - In an electric immersion lens having high resolution capability, secondary electrons generated from a specimen are accelerated to suppress the dependency of rotational action of the secondary electrons applied thereto by an objective lens upon energy levels of the secondary electrons and when selectively detecting low and high angle components of elevation and azimuth as viewed from a secondary electron generation site by means of an annular detector interposed between an electron source and the objective lens, the secondary electrons are adjusted and deflected by means of an E×B deflector such that the center axis of secondary electrons converged finely under acceleration is made to be coincident with the center axis of a low elevation signal detection system and the secondary electrons are deviated from an aperture of a high elevation signal detection system.

Shigeru Takahashi, Hitachinaka JP

Sunao Takahashi, Hitachinaka JP

Patent application number

Description

Published

20090288639

Mechanism for Restraining Fuel Pressure Pulsation and High Pessure Fuel Supply Pump of Internal Combustion Engine with Such Mechanism - A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.

11-26-2009

20130149177

Mechanism for Restraining Fuel Pressure Pulsation and High Pressure Fuel Supply Pump of Internal Combustion Engine with Such Mechanism - A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.